Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/31/2026 | Verkauf | 56.81 | 15,600 | 886,219 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/31/2026 | Optionsausübung | 12.60 | 44,271 | 557,815 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/31/2026 | Verkauf | 58.52 | 2,100 | 122,889 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/31/2026 | Verkauf | 57.75 | 5,501 | 317,709 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/31/2026 | Verkauf | 56.87 | 5,899 | 335,453 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/31/2026 | Optionsausübung | 8.12 | 13,500 | 109,620 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/27/2026 | Verkauf | 60.32 | 4,910 | 296,176 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/27/2026 | Verkauf | 59.69 | 22,590 | 1,348,433 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/27/2026 | Optionsausübung | 8.12 | 27,500 | 223,300 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/26/2026 | Verkauf | 59.58 | 27,500 | 1,638,469 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/26/2026 | Optionsausübung | 8.12 | 27,500 | 223,300 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/26/2026 | Optionsausübung | 8.12 | 10,000 | 81,200 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/14/2026 | Verkauf | 65.26 | 1,500 | 97,893 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/14/2026 | Verkauf | 64.40 | 10,718 | 690,201 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/14/2026 | Verkauf | 63.29 | 1,282 | 81,132 | Form 4 |
| AMBQ | Esaka Fumihide | Chief Executive Officer | 08/14/2026 | Optionsausübung | 8.12 | 13,500 | 109,620 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/14/2026 | Verkauf | 64.41 | 5,400 | 347,793 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/14/2026 | Verkauf | 65.30 | 800 | 52,241 | Form 4 |
| AMBQ | Hanson Scott McLean | Chief Technology Officer | 08/14/2026 | Optionsausübung | 8.12 | 7,000 | 56,840 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).